A two-year effort by the U.K. government to break the dominance of the largest accounting firms has had little impact, with a report Monday showing that the Big Four now audit all of largest 100 companies on the London stock exchange.
The Big Four—Deloitte LLP, Ernst & Young LLP, KPMG LLP, and PwC, also known as PricewaterhouseCoopers LLP—have a lock on the FTSE 100 after Grant Thornton LLP lost its sole audit client among that group, Darktrace Plc, Adviser Rankings Ltd. said in its latest report. Grant Thornton “dropped out of the FTSE-100 in the quarterly FTSE reshuffle ...